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Wave Life Sciences, Inc. short interest

21.2M shares of Wave Life Sciences were sold short at the 15 October 2026 settlement, the most at any settlement since 29 Dec 2017, when our record starts. Short sellers would need 6.5 days of normal trading to buy them back.

Shares sold short21.2Mat 15 Oct 2026
Change on the settlement before+14.1%+61% over a year
Days to cover6.53at 3.2M shares a day
Of shares in issue10.73%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is the most at any settlement since 29 Dec 2017, when our record starts, and the share price moved -55% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 202621.2M+14.1%3.2M6.53
    30 September 202618.6M+5.2%3.3M5.70
    15 September 202617.6M+8.3%3.4M5.17
    31 August 202616.3M+0.5%3.0M5.49
    14 August 202616.2M-1.2%3.7M4.39
    31 July 202616.4M-2.7%2.2M7.45
    15 July 202616.8M-19.4%2.7M6.30
    30 June 202620.9M+15.1%3.7M5.68
    15 June 202618.2M-2.0%3.3M5.58
    29 May 202618.5M+4.3%4.1M4.57
    15 May 202617.8M+6.3%4.3M4.15
    30 April 202616.7M+25.3%4.0M4.14
    15 April 202613.3M+1.0%3.4M3.94
    31 March 202613.2M-1.5%8.8M1.50
    13 March 202613.4M-1.8%2.1M6.27
    27 February 202613.7M-10.5%2.5M5.42
    13 February 202615.2M+0.5%2.5M6.11
    30 January 202615.2M-0.1%3.9M3.94
    15 January 202615.2M+3.4%5.4M2.82
    31 December 202514.7M+0.0%3.1M4.73
    15 December 202514.7M-8.3%21.6M1.00
    28 November 202516.0M+4.0%2.1M7.77
    14 November 202515.4M+15.3%2.8M5.51
    31 October 202513.4M+1.7%4.1M3.26
    15 October 202513.1M-17.1%2.1M6.13
    30 September 202515.8M-12.2%1.9M8.39
    15 September 202518.0M+4.2%3.0M6.00
    29 August 202517.3M+3.4%1.5M11.19
    15 August 202516.8M+4.2%1.7M9.86
    31 July 202516.1M-2.0%1.9M8.55
    15 July 202516.4M+3.8%1.3M12.30
    30 June 202515.8M+6.2%1.1M14.06
    13 June 202514.9M-1.0%1.0M14.43
    30 May 202515.0M-2.7%1.0M15.00
    15 May 202515.4M+16.7%2.0M7.79
    30 April 202513.2M+13.5%1.4M9.48
    15 April 202511.7M+17.4%1.8M6.62
    31 March 20259.9M+19.2%1.3M7.56
    14 March 20258.3M-8.9%1.4M5.98
    28 February 20259.2M-4.0%896K10.23
    14 February 20259.5M+1.5%716K13.34
    31 January 20259.4M+9.0%800K11.75
    15 January 20258.6M+5.0%1.0M8.56
    31 December 20248.2M+16.4%1.1M7.46
    13 December 20247.1M+1.9%963K7.32
    29 November 20246.9M+7.4%1.0M6.67
    15 November 20246.4M-5.4%1.3M4.98
    31 October 20246.8M+39.4%3.0M2.28
    15 October 20244.9M-12.5%965K5.07
    30 September 20245.6M+58.3%3.7M1.49
    13 September 20243.5M+4.6%585K6.03
    30 August 20243.4M+0.8%458K7.38
    15 August 20243.3M-6.9%676K4.96
    31 July 20243.6M-7.4%722K4.98
    15 July 20243.9M-19.0%648K5.99
    28 June 20244.8M+53.8%2.4M1.98
    14 June 20243.1M+23.3%455K6.86
    31 May 20242.5M-8.8%604K4.19
    15 May 20242.8M-0.3%740K3.75
    30 April 20242.8M-11.7%473K5.89
    15 April 20243.2M-12.3%552K5.71
    28 March 20243.6M+20.0%799K4.50
    15 March 20243.0M+0.6%1.8M1.67
    29 February 20243.0M+18.8%929K3.20
    15 February 20242.5M-15.5%734K3.41
    31 January 20243.0M-8.1%495K5.99
    12 January 20243.2M+1.5%781K4.13
    29 December 20233.2M-0.9%866K3.67
    15 December 20233.2M-1.7%1.4M2.26
    30 November 20233.3M-6.3%331K9.85
    15 November 20233.5M-3.2%256K13.57
    31 October 20233.6M-2.5%184K19.50
    13 October 20233.7M+3.3%379K9.72
    29 September 20233.6M+4.4%483K7.38
    15 September 20233.4M+0.1%276K12.39
    31 August 20233.4M-6.1%153K22.34
    15 August 20233.6M+5.5%270K13.49
    31 July 20233.4M-2.8%195K17.69
    14 July 20233.5M-1.1%413K8.58
    30 June 20233.6M+112.6%1.1M3.29
    15 June 20231.7M-5.2%251K6.72
    31 May 20231.8M-19.5%474K3.76
    15 May 20232.2M+13.2%269K8.21
    28 April 20232.0M-0.5%251K7.78
    14 April 20232.0M-2.9%238K8.25
    31 March 20232.0M+32.3%459K4.41
    15 March 20231.5M+36.0%398K3.84
    28 February 20231.1M-11.8%412K2.73
    15 February 20231.3M-21.7%402K3.17
    31 January 20231.6M+6.6%492K3.31
    13 January 20231.5M+1.7%479K3.19
    30 December 20221.5M-23.0%953K1.58
    15 December 20221.9M+32.6%1.7M1.16
    30 November 20221.5M+2.9%260K5.64
    15 November 20221.4M-1.3%412K3.47
    31 October 20221.4M-8.2%369K3.92
    14 October 20221.6M-11.4%428K3.68
    30 September 20221.8M+19.5%374K4.76
    15 September 20221.5M-1.0%150K9.91
    31 August 20221.5M-9.0%181K8.31
    15 August 20221.7M+10.3%919K1.80
    29 July 20221.5M-20.6%258K5.81
    15 July 20221.9M-21.9%657K2.87
    30 June 20222.4M-50.8%1.2M1.98
    15 June 20224.9M-1.1%361K13.59
    31 May 20225.0M+3.7%241K20.55
    13 May 20224.8M+11.7%548K8.73
    29 April 20224.3M+16.7%492K8.70
    14 April 20223.7M+7.2%705K5.21
    31 March 20223.4M+7.7%209K16.38
    15 March 20223.2M+10.3%234K13.61
    28 February 20222.9M+36.3%449K6.41
    15 February 20222.1M+48.2%240K8.82
    31 January 20221.4M+25.9%376K3.79
    14 January 20221.1M-1.0%246K4.61
    31 December 20211.1M-0.9%459K2.49
    15 December 20211.2M+8.4%198K5.82
    30 November 20211.1M-3.6%353K3.02
    15 November 20211.1M+14.0%297K3.71
    29 October 2021968K+7.5%1.0M1.00
    15 October 2021901K-28.8%232K3.88
    30 September 20211.3M-30.8%535K2.36
    15 September 20211.8M-10.0%499K3.67
    31 August 20212.0M-8.7%245K8.28
    13 August 20212.2M-3.4%518K4.29
    30 July 20212.3M-0.2%358K6.44
    15 July 20212.3M+6.1%415K5.57
    30 June 20212.2M+4.1%458K4.75
    15 June 20212.1M-29.7%561K3.72
    28 May 20213.0M-21.2%834K3.56
    14 May 20213.8M+6.3%1.1M3.55
    30 April 20213.5M+12.2%477K7.44
    15 April 20213.2M+9.5%756K4.18
    31 March 20212.9M-31.0%1.6M1.84
    15 March 20214.2M-14.9%760K5.50
    26 February 20214.9M+12.2%407K12.08
    12 February 20214.4M+2.4%432K10.13
    29 January 20214.3M-2.5%574K7.45
    15 January 20214.4M+10.0%733K5.99
    31 December 20204.0M+8.9%638K6.26
    15 December 20203.7M-5.3%503K7.28
    30 November 20203.9M-1.3%636K6.08
    13 November 20203.9M-15.4%796K4.93
    30 October 20204.6M-9.3%595K7.79
    15 October 20205.1M-4.7%957K5.34
    30 September 20205.4M+12.2%2.8M1.92
    15 September 20204.8M-0.1%566K8.45
    31 August 20204.8M-2.9%1.3M3.59
    14 August 20204.9M-4.2%328K15.03
    31 July 20205.1M-2.1%315K16.31
    15 July 20205.3M+1.0%294K17.87
    30 June 20205.2M+3.7%371K14.02
    15 June 20205.0M+6.8%337K14.90
    29 May 20204.7M-5.8%347K13.53
    15 May 20205.0M+0.1%399K12.49
    30 April 20205.0M+9.7%670K7.43
    15 April 20204.5M-9.4%693K6.55
    31 March 20205.0M-20.2%609K8.22
    13 March 20206.3M-0.3%543K11.55
    28 February 20206.3M+5.2%591K10.64
    14 February 20206.0M-5.9%406K14.73
    31 January 20206.4M-1.4%542K11.71
    15 January 20206.4M+46.5%1.3M4.79
    31 December 20194.4M+26.1%2.2M2.01
    13 December 20193.5M-14.9%326K10.69
    29 November 20194.1M+1.9%281K14.58
    15 November 20194.0M+1.0%194K20.72
    31 October 20194.0M-3.1%150K26.56
    15 October 20194.1M-9.9%224K18.30
    30 September 20194.6M+2.5%232K19.64
    13 September 20194.4M+0.2%167K26.66
    30 August 20194.4M+21.6%218K20.35
    15 August 20193.6M+0.7%239K15.26
    31 July 20193.6M-4.1%269K13.46
    15 July 20193.8M-0.9%214K17.61
    28 June 20193.8M-9.4%295K12.91
    14 June 20194.2M+1.4%308K13.67
    31 May 20194.1M-2.2%296K14.03
    15 May 20194.2M-0.3%300K14.13
    30 April 20194.3M+18.2%1.1M3.86
    15 April 20193.6M+6.3%526K6.85
    29 March 20193.4M+6.1%213K15.87
    15 March 20193.2M+7.4%433K7.37
    28 February 20193.0M+1.2%377K7.89
    15 February 20192.9M+1.3%237K12.40
    31 January 20192.9M+2.7%784K3.70
    15 January 20192.8M-0.4%179K15.81
    31 December 20182.8M+23.1%287K9.87
    14 December 20182.3M+8.2%130K17.74
    30 November 20182.1M+4.0%104K20.40
    15 November 20182.0M-11.7%72K28.46
    31 October 20182.3M+6.5%74K31.30
    15 October 20182.2M-4.3%141K15.46
    28 September 20182.3M+2.3%85K26.78
    14 September 20182.2M+1.8%125K17.81
    31 August 20182.2M-7.6%105K20.71
    15 August 20182.4M+4.8%161K14.65
    31 July 20182.3M-6.9%121K18.56
    13 July 20182.4M-9.5%179K13.53
    29 June 20182.7M-0.6%615K4.35
    15 June 20182.7M-7.6%182K14.82
    31 May 20182.9M-2.0%158K18.49
    15 May 20183.0M-4.8%144K20.64
    30 April 20183.1M-2.3%118K26.46
    13 April 20183.2M+8.1%175K18.29
    29 March 20183.0M+7.1%156K18.92
    15 March 20182.8M-4.9%164K16.83
    28 February 20182.9M+5.6%252K11.52
    15 February 20182.7M+2.7%142K19.32
    31 January 20182.7M+6.7%150K17.87
    12 January 20182.5M+4.4%143K17.51
    29 December 20172.4M170K14.12
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.